In PHP, the equal sign returns the value assigned. For instance, this will output 5 and set $foo to 5:In the example they give in this book, they use a "while" loop (page 670, for anyone who has it). But it's confusing because it looks like this: while ( $subscriber = mysql_fetch_row($result)) { [write and send the email] } $subscriber is probably an array, filled with the email address and information about the mailing list subscriber. But in the rest of the script I can't find where they declare and fill this array. But more than that, I can't understand how this "while" loop would ever stop running. Nothing seems to change $subscriber within the "while" loop's control structure. It doesn't ever say anything like "$subscriber ++1". Nor does $result have anything act upon it which would change it. So to me they both look static, and this loop looks endless.
print $foo = 5;
Now, the mysql_fetch_row function returns an array of results, or false if it's gone through all the results (it automagically knows which result it's on). If it's the last row, $subscriber is set to false and false is given for the loop condition.
-- The above message is encrypted with double rot13 encoding. Any unauthorized attempt to decrypt it will be prosecuted to the full extent of the law.
-- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
